fix operator= not returning *this
cleanup main header
made constructors explicit
made getUnit* accessors more literal
made connectTo return ref (for chaining)
fix now-outdated calls to getUnit()
Added TPCircularBuffer
add a changelog
Switch to "pimpl" style for Tap
Switch to "pimpl" style for ofxAudioUnitInput
set tap to create a 2048-sample buffer by default
update file linkage in examples
update changelog
deprecate use of operator >> for connections
update changelog for 0.3